Display Device

1. A display device comprising: a display panel including a display surface which displays an image; a barrier panel including a plurality of barrier regions, each of the barrier regions including two nontransmissive regions which block light transmitted from the display unit and one transmissive region which is arranged between the two nontransmissive regions and allows light transmitted from the display panel to pass through; and a controller which produces the barrier regions in the barrier panel and controls arrangement of the barrier regions; a digital camera which acquires position information of a viewer of the display panel in a perpendicular direction to the display surface, wherein the controller controls the barrier region having a first barrier pitch and the barrier region having a second barrier pitch in the barrier panel, the second barrier pitch including the transmissive region having a width which is the same as a width of the transmissive region of the barrier region having the first barrier pitch, and the nontransmissive region having a width which is different from a width of the nontransmissive region of the barrier region having the first barrier pitch, the controller controls a boundary region at the boundary between the transmissive region and the nontransmsissive region in the barrier region having the second barrier pitch to be alternately displayed in a transmissive display mode and in a nontransmissive display mode every predetermined number of frames, and the controller adjusts a barrier pitch of the barrier panel based on the position information acquired from the digital camera, the controller stores a distance between the viewer and the display surface of the display panel when only the barrier regions having the first barrier pitch are arranged in the barrier panel, as an optimum distance, the controller controls, when the viewer moves closer to the display surface from the optimum distance, the barrier region having the first barrier pitch and the barrier region having the second barrier pitch in the barrier panel such that the width of the nontransmissive region of the barrier region having the second barrier pitch is less than the width of the nontransmissive region of the barrier region having the first barrier pitch, and the boundary region at the boundary between the transmissive region and the nontransmissive region in the barrier region having the second barrier pitch such that a part of the transmissive region is alternately displayed in a white display mode and in a black display mode every predetermined number of frames, and the controller controls, when the viewer moves away from the display surface from the optimum distance, the barrier region having the first barrier pitch and the barrier region having the second barrier pitch in the barrier panel such that the width of the nontransmissive region of the barrier region having the second barrier pitch is greater than the width of the nontransmissive region of the barrier region having the first barrier pitch, and the boundary region at the boundary between the transmissive region and the nontransmissive region in the barrier region having the second barrier pitch such that a part of the nontransmissive region is alternately displayed in the white display mode and in the black display mode every predetermined number of frames.

2. The display device of claim 1 , wherein the controller symmetrically controls and arranges the barrier regions having the second barrier pitch with respect to the center of the barrier panel.

3. The display device of claim 2 , wherein the barrier panel includes a plurality of unit regions, and each of the transmissive region and the nontransmissive region in each of the barrier region having the first barrier pitch and the barrier region having the second barrier pitch is composed of the unit regions, and the controller controls the barrier region having the first barrier pitch and the barrier region having the second barrier pitch based on the position information of the viewer acquired from the digital camera and sets the unit region at the end of the barrier panel as the nontransmissive region according to the number of the barrier regions having the second barrier pitch.

4. A stereoscopic display device comprising: a display panel including a plurality of pixels arranged in two dimensions; and a barrier panel including a plurality of barrier regions, each of the barrier regions including two nontransmissive regions which block light transmitted from the display panel and one transmissive region which is arranged between the two nontransmissive regions and allows light transmitted from the display panel to pass through; a controller which produces the barrier regions in the barrier panel and controls arrangement of the barrier regions, wherein the barrier panel comprises a first substrate, a second substrate, a liquid crystal layer which is interposed between the first substrate and the second substrate, a plurality of first electrodes which are provided on the first substrate and are elongated in a columnar fashion, a second electrode which is provided on either one of the first substrate and the second substrate, and a driver which is formed on the first substrate and drives the first electrodes, a pitch of the first electrodes is less than a pitch of the pixels of the display panel, the second electrode of the barrier panel is arranged on the first electrodes via an insulating film, and is supplied a common voltage, the driver comprises a shift register circuit which receives a drive signal from the controller, a latch circuit which sequentially stores a signal from the shift register circuit, and a buffer circuit which temporarily stores the drive signal for the barrier panel and outputs the signal to the barrier panel, the buffer circuit is connected to the first electrodes, and the driver is polysilicon.

5. A display device comprising: a display panel including a display surface which displays an image; a digital camera which acquires position information of a viewer of the display device in a perpendicular direction to the display surface; a barrier panel including a plurality of barrier regions, each of the barrier regions including two nontransmissive regions which block light transmitted from the display panel and one transmissive region which is arranged between the two nontransmissive regions and allows light transmitted from the display panel to pass through; a controller which produces the barrier regions in the barrier panel and controls arrangement of the barrier regions in the barrier panel based on the position information acquired from the digital camera, wherein the controller controls the barrier region having a first barrier pitch and the barrier region having a second barrier pitch in the barrier panel, the second barrier pitch including the transmissive region having a width which is the same as a width of the transmissive region of the barrier region having the first barrier pitch, and the nontransmissive region having a width which is different from a width of the nontransmissive region of the barrier region having the first barrier pitch, the barrier panel comprises a first substrate, a second substrate, a liquid crystal layer which is interposed between the first substrate and the second substrate, a plurality of first electrodes which are provided on the first substrate and are elongated in a columnar fashion, a second electrode which is provided on either one of the first substrate and the second substrate, and a driver which is formed on the first substrate and drives the first electrodes, a pitch of the first electrodes is less than a pitch of the pixels of the display panel, the first electrodes produce the first barrier pitch and the second barrier pitch, the driver comprises a shift register circuit which receives a drive signal from the controller, a latch circuit which sequentially stores a signal from the shift register circuit, and a buffer circuit which temporarily stores the drive signal for the barrier panel and outputs the signal to the barrier panel, the controller controls the barrier region having the first barrier pitch and the barrier region having the second barrier pitch in the barrier panel, the second barrier pitch includes the transmissive region having a width which is the same as a width of the transmissive region of the barrier region having the first barrier pitch, and the nontransmissive region having a width which is different from a width of the nontransmissive region of the barrier region having the first barrier pitch, and the controller controls a boundary region at the boundary between the transmissive region and the nontransmsissive region in the barrier region having the second barrier pitch to be alternately displayed in a transmissive display mode and in a black display mode every predetermined number of frames.

6. The display device of claim 5 , wherein the controller controls a boundary region at the boundary between the transmissive region and the nontransmissive region in the barrier region having the second barrier pitch to be displayed in a halftone display mode.